DISPATCH-1739 Add -DUSE_BWRAP option, defaulting to OFF
DISPATCH-1739 Add -DUSE_BWRAP option, defaulting to OFF

Bubblewrap (https://github.com/containers/bubblewrap) is
an unprivileged sandbox. It allows running tests in parallel,
without any port clashes with already running servers.

apache/qpid-dispatch,ted-ross/qpid-dispatch,ted-ross/qpid-dispatch,ganeshmurthy/qpid-dispatch,apache/dispatch,ChugR/qpid-dispatch,ChugR/qpid-dispatch,ErnieAllen/qpid-dispatch,ChugR/qpid-dispatch,kgiusti/dispatch,ted-ross/qpid-dispatch,ErnieAllen/qpid-dispatch,ErnieAllen/qpid-dispatch,ted-ross/qpid-dispatch,apache/dispatch,ganeshmurthy/qpid-dispatch,ChugR/qpid-dispatch,ChugR/qpid-dispatch,apache/qpid-dispatch,kgiusti/dispatch,apache/dispatch,ErnieAllen/qpid-dispatch,kgiusti/dispatch,apache/dispatch,ganeshmurthy/qpid-dispatch,mgoulish/qpid-dispatch,apache/dispatch,ted-ross/qpid-dispatch,apache/qpid-dispatch,ErnieAllen/qpid-dispatch,apache/qpid-dispatch,mgoulish/qpid-dispatch,apache/qpid-dispatch,kgiusti/dispatch,kgiusti/dispatch,ganeshmurthy/qpid-dispatch,ErnieAllen/qpid-dispatch,apache/dispatch,apache/qpid-dispatch,mgoulish/qpid-dispatch,mgoulish/qpid-dispatch,ChugR/qpid-dispatch,ganeshmurthy/qpid-dispatch,apache/dispatch,ganeshmurthy/qpid-dispatch,ted-ross/qpid-dispatch,kgiusti/dispatch,mgoulish/qpid-dispatch,mgoulish/qpid-dispatch